Resources for the Repair and Maintenance of your Mercedes-Benz R350
Mercedes-Benz R350 Models:
Mercedes-Benz R350 Problems
Check Engine Light Due to Faulty Camshaft Adjuster Solenoid
The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.
Problem With Ball Joints May Cause Creaking Noise
A problem with the ball joints can cause a creaking noise. There is an updated part to remedy this problem.
Rough Shifting of Automatic Transmission
Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.
"Crank no Start" Due to Failed Crankshaft Position Sensor
The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance. Communicating these specific symptoms to your technician can save diagnostic time.
ABS Modulator Failure Due to Dirty Brake Fluid
The anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.
Mercedes-Benz R350 Recalls (Recent)
Second Row Seat Belt Buckle May Come Loose
RepairPal Expert Overview:
Some second row seats were manufactured without threads in the nut used to secure the seat belt buckle. In the event of a crash, the buckle may not hold as designed, increasing the risk of injury to a second row seat occupant. Dealers will inspect the second row seat and replace it as necessary. This recall is scheduled to begin on May 3rd, 2006. The Mercedes-Benz recall number is 2006040003.
Learn more »Accelerator Pedal May Not Be Fully Fastened to Its Mount
RepairPal Expert Overview:
The accelerator pedal may be loose due to insecure mounting studs and nuts. This could cause difficulty operating the accelerator. Dealers will inspect and install the mounting nuts of the accelerator pedal if necessary. The Mercedes-Benz recall number is 2006120008. This recall began on January 16, 2007.
Learn more »Incorrect Software Calibration May Cause Fuel Pump To Remain Powered In A Collision
RepairPal Expert Overview:
There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.
Learn more »Wire Harness to Starter Motor May Be Damaged
RepairPal Expert Overview:
The wiring harness to the starter motor may be routed incorrectly. This could lead to chafing of the protective sleeve on the engine mount cover. Over time, this chafing could wear through the sleeve and expose the underlying wiring. Damaged wires may result in a electrical short and loss of function of the vehicle's electrical system. Dealers will inspect the wiring and correct its routing. If necessary, the protective sleeve and/or wiring will be replaced. This recall is expected to begin on May 12, 2006. The Mercedes-Benz recall number is 2006040002.
Learn more »Mercedes–Benz Recalls 2008 Vehicles for Defect in Power Steering Oil Pressure Driving Pin
RepairPal Expert Overview:
Meredes–Benz is recalling certain 2008 GL-Class, M-Class, and R-Class vehicles for a possible defect in the driving pin used to control power steering oil pressure. If the pin breaks during normal vehicle turning, the steering assist will no longer operate, causing difficulty operating the steering wheel. Dealers will replace the steering gears of the affected vehicles.
Learn more »Mercedes-Benz R350 Questions and Answers
I am a heavily trained in mechanics but don't want to inadvertently break something. How do I change the air filters on a 2006 mercedes r350?
The fronts seats will lock up this has happened now three times.The Dealers keep say it nothing and when we bring it to them it works.
I am getting a oil change. The mechanic said I need to change my air filters and he said that there is two air filters. I am not sure.
how do I reset break wear light on console breaks and sensors have been changed
My wife has ran the fuel tank dry. Is there anyway to reprime the system and/or reset the computer to get the vehicle running myself, without having to take it to the dealership? I am very mechanic...
Mercedes-Benz R350 Stories
At 63k, my r350 rear dropped on the tires. Dealer said rear suspension air bags collapsed. Bill=$1555. Same week, camshaft position sensors brought out the dreaded "check engine". Bill=$1175. Power steering pump started leaking. Bill=$450. Never buy a mercedes without a warranty. This r350 is a "German nightmare". Mercedes has lost it's engineering glory of those days at least on this one. Be careful.
I bought a Mercedes R350 on recomendation by my father in law. After 3 years I have realized that this was maybe the biggest mistake I could have made. This car can not be described as anything, but rubbish. The famed German engineering is a myth and this car is a poor example of what they perceive as quality. Sorry to say this, but my family will never have a German car in our driveway. This car has a good ride yes, but that is where it end. We are told not to buy Japanese, but after the experience of this rubbish I will be moving on to a Japanes product as I believe that I will have so much more to enjoy.
I bought this 2006 R-350 with 30,000 miles on it. The car is great to drive and is great looking, the problem is that the car is a money pit! It is now out of warranty and has 60,000 miles on it. I just had it into the dealer to get a once over to 'fix' a variety of leaks and issues for the small price of $1800. Now 6 months later the transmission seems to have failed and now I am being told it will cost between $6000 and $10,000 to fix it!!
Take my advice- DO NOT BUY ANY USED MERCEDES!!!!!
Unless it is fully covered by a factory warranty.
Then make sure you get rid of it BEFORE the warranty expires!!!!
I am just absolutely shocked that such a (supposedly) high quality would have a transmission fail at 60,000 miles. Sure,if I was drag racing with the damn thing yes, maybe. But all we do is drive it back and forth to school. Just a shame!!!
This is my first and will be my LAST MERCEDES!
I have an infiniti FX-35. Guess what, I have driven the hell out of this car and it has needed to go to the 'workshop' how many times??? ZERO!!!!!!!!!
Buy a LEXUS, INFINITI, ACURA,even BMW.
AVOID any used mercedes like the plague. I'm sorry to say this but your bank account will thank you.
The front end is so low to the ground every time I go in a drive way or out the bumper comes off?? Does anyone else have this problems>
The engine is great, transmission great, Suspension and the different selections are great. The few things that are not top notch is the steering, I can not feel the road with it, the "power steering" system over compensates pressure to turn the wheels, thus I do not feel it in the steering wheel. And the "Sport" and "Comfort" has unnoticable difference except sport enters 1st gear and comfort does not.
For the engine size and mpg it has good power. I get 24mpg highway.
Quality build. I plan to keep it for ever. I have 40,000 miles so far.